Home / 4,817.70-7,218.45-4,121.10

Finding the Fourth Proportional to 4,817.70, 7,218.45 and 4,121.10

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Solution

The fourth proportional to 4,817.70, 7,218.45 and 4,121.10 is: 6,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817.70 : 7,218.45 = 4,121.10 : x
  2. Step 2: Convert to fraction form
    4,817.70/7,218.45 = 4,121.10/x
  3. Step 3: Cross multiply
    4,817.70x = 7,218.45 × 4,121.10
  4. Step 4: Simplify right side
    4,817.70x = 29,747,954.30
  5. Step 5: Solve for x
    x = 29,747,954.30/4,817.70
  6. Step 6: Final answer
    x = 6,174.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.